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STRINGSTRING
STRING protein interaction network
Nodes:
Network nodes represent proteins
splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
Node Color
colored nodes:
query proteins and first shell of interactors
white nodes:
second shell of interactors
Node Content
empty nodes:
proteins of unknown 3D structure
filled nodes:
some 3D structure is known or predicted
Edges:
Edges represent protein-protein associations
associations are meant to be specific and meaningful, i.e. proteins jointly contribute to a shared function; this does not necessarily mean they are physically binding to each other.
Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
Others
textmining
co-expression
protein homology
Your Input:
Neighborhood
Gene Fusion
Cooccurence
Coexpression
Experiments
Databases
Textmining
[Homology]
Score
cbeACytoskeleton bundling-enhancing protein cbea and related proteins; Antitoxin component of a type IV toxin-antitoxin (TA) system . Antitoxin that counteracts the effect of its cognate toxin CbtA (YeeV) . It does not bind to the toxin but instead binds to MreB and FtsZ (the toxin targets), enhancing their polymerization by forming higher-order bundles; it is probably retained in the MreB and FtsZ filament bundles . The mechanism has been proposed to require intergenic DNA, in cis, between the cbeA (yeeU) and cbta (yeeV) genes . The intergenic region was not found to be necessary in anoth [...] (122 aa)    
Predicted Functional Partners:
cbtA
Toxic component of a type IV toxin-antitoxin (TA) system Acts as a dual toxin inhibitor that blocks cell division and cell elongation in genetically separable interactions with FtsZ and MreB . Interacts with cytoskeletal proteins FtsZ and MreB; inhibits FtsZ GTP-dependent polymerization and GTPase activity as well as MreB ATP-dependent polymerization Binds to both the N- and C-terminus of FtsZ, likely blocking its polymerization and localization, leading to blockage of cell division . Overexpression results in inhibition of growth in liquid cultures and decrease in colony formation; th [...]
 
   
 0.998
ypjF
CP4-57 prophage; toxin of the YpjF-YfjZ toxin-antitoxin system; Toxic component of a type IV toxin-antitoxin (TA) system . Acts as a dual toxin inhibitor that blocks cell division and cell elongation in genetically separable interactions with FtsZ and MreB . Overexpression results in inhibition of growth in liquid cultures . Overexpression leads to formation of lemon-shaped cells; inactivated by overexpression of cognate antitoxin YfjZ but not when the 2 genes are coexpressed from the same plasmid . Also neutralized by overexpression of non-cognate antitoxins YafW and CbeA
  
   
 0.970
ykfI
CP4-6 prophage; toxin of the YkfI-YafW toxin-antitoxin system; Toxic component of a type IV toxin-antitoxin (TA) system . Acts as a toxin inhibitor that blocks cell division and cell elongation via FtsZ and possibly also MreB (although no interaction with MreB has been proven) . Overexpression results in inhibition of growth in liquid cultures and a decrease in colony formation These effects are overcome by concomitant expression of cognate antitoxin YafW, which leads to toxin loss by an unknown mechanism . Overexpression leads to formation of lemon-shaped cells and cell lysis; inactiv [...]
  
   
 0.966
yeeT
Uncharacterized protein YeeT; Phage or Prophage Related; Belongs to the YeeT/YkfH/YpjJ family
 
   
 0.946
mreB
Cell wall structural complex mrebcd, actin-like component mreb; Forms membrane-associated dynamic filaments that are essential for cell shape determination Acts by regulating cell wall synthesis and cell elongation, and thus cell shape . A feedback loop between cell geometry and MreB localization maintains elongated cell shape by targeting cell wall growth to regions of negative cell wall curvature . Filaments rotate around the cell circumference in concert with the cell wall synthesis enzymes. The process is driven by the cell wall synthesis machinery and does not depend on MreB polym [...]
    
 
 0.916
ftsZ
Gtp-binding tubulin-like cell division protein; Essential cell division protein that forms a contractile ring structure (Z ring) at the future cell division site. The regulation of the ring assembly controls the timing and the location of cell division. One of the functions of the FtsZ ring is to recruit other cell division proteins to the septum to produce a new cell wall between the dividing cells. Binds GTP and shows GTPase activity. Polymerization and bundle formation is enhanced by CbeA
    
 
 0.902
yeeR
CP4-44 prophage; inner membrane protein YeeR; Inner membrane protein YeeR; Phage or Prophage Related
 
   
 0.886
cptA
A probable inner membrane protein. Has been shown not to be a toxin, no effects on growth are seen in LB or minimal medium up to 6 or 21 hours (respectively) after induction of expression . Interacts with cytoskeletal proteins FtsZ and MreB; inhibits FtsZ GTP-dependent polymerization as well as MreB ATP- dependent polymerization . Restores production of prodigiosin antibiotic (Pig) in Serratia strains with deletions of sdhE-ygfX; overexpression of this protein and CptB also restores Pig production to a slightly lesser extent in Serratia
      
 0.876
ghoT
Toxic component of a type V toxin-antitoxin (TA) system. Causes membrane damage when induced by MqsR, slowing cell growth and increasing the formation of dormant persister cells; involved with GhoS, its antitoxin, in reducing cell growth during antibacterial stress . Overexpression causes cell lysis, forming ghost cells; both effects are neutralized by expression of GhoS. Overexpression in the presence of ampicillin increases persister cell formation (persister cells exhibit antibiotic tolerance without genetic change) . Overexpression causes about 90-fold reduction in cellular ATP lev [...]
      
 0.875
ghoS
Antitoxin component of a type V toxin-antitoxin (TA) system. Neutralizes the toxic effects of toxin GhoT by digesting ghoT transcripts in a sequence-specific manner . In concert with GhoT is involved in reducing cell growth during antibacterial stress . Overexpression leads to transcript level reduction of 20 other mRNAs involved in purine or pyrimidine synthesis and transport. Not seen to bind its own promoter DNA
      
 0.874
Your Current Organism:
Escherichia coli K12 MG1655
NCBI taxonomy Id: 511145
Other names: E. coli str. K-12 substr. MG1655, Escherichia coli K12 substr. MG1655, Escherichia coli MG1655, Escherichia coli str. K-12 substr. MG1655, Escherichia coli str. K12 substr. MG1655, Escherichia coli str. MG1655, Escherichia coli strain MG1655
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